# Title: Potential flow around a thin plate
#
# Description:
#
# This test case triggers an instability if the cell-centered pressure
# gradient used in the approximate projection is not computed using
# solid-fraction-weighted averages of the face-centered pressure
# gradients.
#
# Author: St\'ephane Popinet
# Command: sh plate.sh plate.gfs
# Version: 1.1.2
# Required files: plate.sh
#
1 0 GfsSimulation GfsBox GfsGEdge {} {
  Time { iend = 30 dtmax = 1e-2 }
  Refine 5
  RefineSolid 6
  Solid (cube(0,0,0,0.5)) { sy = 0.06251 tx = 0.031249 ty = -0.015 }
  AdvectionParams { scheme = none }
  Init {} { U = 1 }
  OutputScalarNorm { start = end } stdout { v = Velocity } 
}
GfsBox {
  left = Boundary { BcDirichlet U 1 }
  right = BoundaryOutflow 
}